Pauper Magic (or Pauper Deck Challenge) is a format of Magic: the Gathering in which only commons are legal. This restriction may be applied to existing formats like Classic or Standard. PDCMagic.com offers free weekly tournaments on MTGO in many of these Pauper formats.

End of an era....
After being inactive for a number of months with no new tournaments, I've decided to retire the pdcmagic.com site because I don't have the time to maintain it anymore. Please check out the sites below for some resources on discussing Pauper magic.
If you would like to take over pdcmagic.com and actively maintain it, please email Marie at the link below and we can work out the arrangements.